diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/firmware/Kconfig | 3 | ||||
| -rw-r--r-- | drivers/firmware/dmi_scan.c | 20 |
2 files changed, 13 insertions, 10 deletions
diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig index 074787281c94..5a29fac951ec 100644 --- a/drivers/firmware/Kconfig +++ b/drivers/firmware/Kconfig @@ -108,6 +108,9 @@ config DMI_SYSFS under /sys/firmware/dmi when this option is enabled and loaded. +config DMI_SCAN_MACHINE_NON_EFI_FALLBACK + bool + config ISCSI_IBFT_FIND bool "iSCSI Boot Firmware Table Attributes" depends on X86 diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c index c7e81ff8f3ef..17afc51f3054 100644 --- a/drivers/firmware/dmi_scan.c +++ b/drivers/firmware/dmi_scan.c @@ -116,7 +116,7 @@ static int __init dmi_walk_early(void (*decode)(const struct dmi_header *, { u8 *buf; - buf = dmi_ioremap(dmi_base, dmi_len); + buf = dmi_early_remap(dmi_base, dmi_len); if (buf == NULL) return -1; @@ -124,7 +124,7 @@ static int __init dmi_walk_early(void (*decode)(const struct dmi_header *, add_device_randomness(buf, dmi_len); - dmi_iounmap(buf, dmi_len); + dmi_early_unmap(buf, dmi_len); return 0; } @@ -527,18 +527,18 @@ void __init dmi_scan_machine(void) * needed during early boot. This also means we can * iounmap the space when we're done with it. */ - p = dmi_ioremap(efi.smbios, 32); + p = dmi_early_remap(efi.smbios, 32); if (p == NULL) goto error; memcpy_fromio(buf, p, 32); - dmi_iounmap(p, 32); + dmi_early_unmap(p, 32); if (!dmi_present(buf)) { dmi_available = 1; goto out; } - } else { - p = dmi_ioremap(0xF0000, 0x10000); + } else if (IS_ENABLED(CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK)) { + p = dmi_early_remap(0xF0000, 0x10000); if (p == NULL) goto error; @@ -554,12 +554,12 @@ void __init dmi_scan_machine(void) memcpy_fromio(buf + 16, q, 16); if (!dmi_present(buf)) { dmi_available = 1; - dmi_iounmap(p, 0x10000); + dmi_early_unmap(p, 0x10000); goto out; } memcpy(buf, buf + 16, 16); } - dmi_iounmap(p, 0x10000); + dmi_early_unmap(p, 0x10000); } error: pr_info("DMI not present or invalid.\n"); @@ -831,13 +831,13 @@ int dmi_walk(void (*decode)(const struct dmi_header *, void *), if (!dmi_available) return -1; - buf = ioremap(dmi_base, dmi_len); + buf = dmi_remap(dmi_base, dmi_len); if (buf == NULL) return -1; dmi_table(buf, dmi_len, dmi_num, decode, private_data); - iounmap(buf); + dmi_unmap(buf); return 0; } EXPORT_SYMBOL_GPL(dmi_walk); |